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Pipe sizing(supply & return) for Carrier 42ck fan coil ac units

If your a member of the U.A. you can order this book on line (Hydronic Heating and Cooling.) It's got it all. $40.00.


  • a/c fan coil units

    I am wondering about the proper way to size supply and return piping for the installation of Carrier 42ck fan coil a/c units. I have the york manual and I also have the carrier guide and it gives an excellent formula for doing so however I am confused on the true way of finding hydrostatic lift of the cooling tower and also do the pipes need to be pitched at all. I am also wondering if there are high pressure valves available due to the high operating pressure of the system and if so, where can I buy them. Thank you very much for your time.
  • thanx

    thank you very much. I will do just that
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